Other than advertising revenue you earn from your website, do you use other ways to earn money online?
If yes, how long have you been doing so, through what means and how much have you earned to date?
If not, why not?

Member subscriptions by offering an advertisement-free version of the website. It doesn't bring in much money, but it makes the members feel good about themselves by giving them special benefits (sponsor badge, etc) which, in turn, encourages them to spend more time on the site.

There is no ways to make fast money online. Making quick money is every one's dream but this dream can't be full filled without hard work. Google adsense is my favorite, and which has worked well for me till now.

For example, if you have a health network, you could create a store (using a program such as PopShops) with health products. If you have a travel network, just create a tab on your site for reservations.

Most of the big affiliate networks (Commission Junction, LinkShare, Share A Sale, etc...) allow you to put links or banners on your site and earn a commission form any sales that are made from those links.

Yep.. if you have enough visitors you can even make money without adsense. You can sell Text links on your site, banner advertising or you can just buy a site market it well and sell them. Also, domain buying and selling is a good business to make money.

One of the best ways people are making more money than AdSense is by contacting companies directly and asking them to advertise on the site. This way (depending on traffic) you can charge $100 or $1,000 per month to run someone's ad on your site.

It is more difficult because you need to sel the ad space yourself, but people are making more money with this strategy compared to the very easy AdSense model.

I am working as seo. It is all about online earning. I am hard work and i want to earn on hand. I don't like short cut method. Some people want to become rich man in one night it is impossible for every one.

Google Adsense have put the Google owners into the top 10 richest people in America and it has made huge amounts of money for many website owners. You are in business for yourself but not by yourself since you are partners with Google. Also you can meet some great people at a Google Adsense meeting!
I like the ads on daniweb since some of them apply to me.

By providing online marketing services like Search engine optimization, link building, article marketing, social media optimization - I do earn money online. Other than that, there are affiliate programs which I do participate too. But those did not help for me. As well as I do invest on online forex trading too.